CN108023642B - Optical fiber communication device and system - Google Patents
Optical fiber communication device and system Download PDFInfo
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- CN108023642B CN108023642B CN201810005835.4A CN201810005835A CN108023642B CN 108023642 B CN108023642 B CN 108023642B CN 201810005835 A CN201810005835 A CN 201810005835A CN 108023642 B CN108023642 B CN 108023642B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
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Abstract
The invention provides an optical fiber communication device and an optical fiber communication system, and relates to the technical field of optical fiber communication. The optical fiber communication device comprises a processor, a first optical coupler, a second optical coupler, an optical splitter, a photovoltaic conversion circuit and a modulation circuit. Wherein the first optical coupler is used for receiving an optical signal; the optical splitter is used for splitting the received optical signals into at least one first optical signal and at least one second optical signal; the photovoltaic conversion circuit is used for converting at least one path of first optical signals into electric energy; the modulation circuit is used for modulating the signal to be transmitted onto a second optical signal; the second optical coupler is used for outputting a modulated second optical signal. According to the scheme, the first optical signal is converted into electric energy for the optical fiber communication device to use, the signal to be sent is modulated to the second optical signal to be output, the optical fiber communication device does not need to generate a light source, the received optical signal is directly modulated, and the energy conversion efficiency in optical fiber communication is improved and the energy consumption of the optical fiber communication is reduced.
Description
Technical Field
The invention relates to the technical field of optical fiber communication, in particular to an optical fiber communication device and an optical fiber communication system.
Background
In the field of optical fiber communication, the existing optical fiber sensor uses pumping self-luminescence to form a light source, so as to realize a one-to-one communication mode. If all-fiber communication is to be achieved, the light needs to be converted into electricity and back again. At present, the conversion efficiency of light to electricity and electricity to light is lower, and the twice conversion will lead to a large amount of energy losses, so that the received signal is weaker, and the communication quality is affected. Although the power of the light source can be increased, the energy conversion efficiency is low and the energy loss is large. Therefore, how to provide a solution to the above-mentioned problems has become a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an optical fiber communication device and an optical fiber communication system which have simple structures and are easy to realize, an optical signal is sent out by an optical communication base station, the optical fiber communication device directly modulates a signal to be sent to the optical signal, and the optical communication device is not required to generate a light source, so that the problems are solved.
In order to achieve the above object, the technical solution provided by the preferred embodiment of the present invention is as follows:
The preferred embodiment of the invention provides an optical fiber communication device, which is applied to an optical fiber communication system, and comprises a processor, a first optical coupler, a second optical coupler, an optical splitter, a photovoltaic conversion circuit and a modulation circuit, wherein:
the first optical coupler is used for receiving an optical signal;
The optical splitter is connected with the first optical coupler and is respectively connected with the photovoltaic conversion circuit and the modulation circuit, and is used for splitting the optical signal received by the first optical coupler into at least one path of first optical signal and at least one path of second optical signal;
The photovoltaic conversion circuit is connected with the processor and the modulation circuit and is used for converting at least one path of first optical signals into electric energy and supplying the electric energy to the processor and the modulation circuit;
The modulation circuit is connected with the processor and used for modulating the signal to be transmitted received by the processor onto the second optical signal under the control of the processor; the second optical coupler is connected with the modulation circuit and is used for outputting a modulated second optical signal.
Optionally, the modulation circuit includes a modulation sub-circuit and a driving sub-circuit, where the driving sub-circuit is connected with the photovoltaic conversion circuit, the processor and the modulation sub-circuit, and is used for amplifying the signal to be sent;
the modulation subcircuit is connected with the optical splitter, the first optical coupler and the second optical coupler and used for modulating the amplified signal to be transmitted to the second optical signal.
Optionally, the optical fiber communication device further includes a communication controller connected to the processor, where the communication controller is configured to be in communication connection with a downstream device, so as to receive a signal to be sent by the downstream device.
Optionally, the optical fiber communication device is in communication connection with the downlink device through at least one of a GPIO interface, a UART interface, an I2C interface and an SPI interface.
Optionally, the optical fiber communication device further includes a boost circuit, one end of the boost circuit is connected with the photovoltaic conversion circuit, and the other end of the boost circuit is connected with the processor and the modulation circuit, and is used for boosting the output voltage of the photovoltaic conversion circuit so as to provide voltages corresponding to the processor and the modulation circuit.
Optionally, the optical fiber communication device further includes a voltage stabilizer, one end of the voltage stabilizer is connected with the photovoltaic conversion circuit, and the other end of the voltage stabilizer is connected with the processor and the modulation circuit, and is used for stabilizing the output voltage of the photovoltaic conversion circuit.
Optionally, the optical fiber communication device further includes an automatic turn-off circuit, and the automatic turn-off circuit is connected with the photovoltaic conversion circuit, and is configured to disconnect power supply from the photovoltaic conversion circuit, the processor, and the modulation circuit when detecting that the output voltage of the photovoltaic conversion circuit is lower than a preset value.
Optionally, the above-mentioned automatic shutdown circuit includes voltage detection chip and automatically controlled switch, voltage detection chip includes positive electrode pin, ground pin and signal output pin, positive electrode pin with photovoltaic conversion circuit's voltage output end is connected, ground pin ground, signal output pin with automatically controlled switch connects, wherein:
The electric control switch is arranged on the power supply lines of the photovoltaic conversion circuit, the processor and the modulation circuit, and the voltage detection chip is used for controlling the electric control switch to be disconnected when the output voltage of the photovoltaic conversion circuit is detected to be lower than a preset value.
Optionally, the optical fiber communication device further includes a photoelectric conversion module, where the photoelectric conversion module is connected to the processor and is configured to receive signal light with a command and generate an electrical signal; the processor is further configured to obtain a signal to be sent corresponding to the electrical signal when the electrical signal is detected to be of a preset type.
The invention also provides an optical fiber communication system, which comprises an optical communication base station for emitting optical signals and the optical fiber communication devices, wherein at least one optical fiber communication device is in optical communication with the optical communication base station, and each optical fiber communication device is used for converting part of the optical signals into electric energy and modulating signals to be sent to the optical signals.
Compared with the prior art, the optical fiber communication device and the optical fiber communication system provided by the invention have the following beneficial effects: the optical fiber communication device comprises a processor, a first optical coupler, a second optical coupler, an optical splitter, a photovoltaic conversion circuit and a modulation circuit. Wherein the first optical coupler is used for receiving an optical signal; the optical splitter is connected with the first optical coupler and is respectively connected with the photovoltaic conversion circuit and the modulation circuit and is used for dividing the received optical signal into at least one path of first optical signal and at least one path of second optical signal; the photovoltaic conversion circuit is connected with the processor and the modulation circuit and is used for converting at least one path of first optical signals into electric energy and supplying the electric energy to the processor and the modulation circuit; the modulation circuit is connected with the processor and used for modulating the signal to be transmitted received by the processor onto a second optical signal under the control of the processor; the second optical coupler is connected with the modulation circuit and is used for outputting a modulated second optical signal. According to the scheme, the first optical signal is converted into electric energy for the optical fiber communication device to use, the signal to be sent is modulated to the second optical signal to be output, the optical fiber communication device does not need to generate a light source, the received optical signal is directly modulated, and the energy conversion efficiency in optical fiber communication is improved and the energy consumption of the optical fiber communication is reduced.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described. It is to be understood that the following drawings illustrate only certain embodiments of the invention and are therefore not to be considered limiting of its scope, for the person of ordinary skill in the art may admit to other equally relevant drawings without inventive effort.
Fig. 1 is an interactive schematic diagram of an optical fiber communication system according to a preferred embodiment of the present invention.
Fig. 2 is a block diagram of an optical fiber communication device according to a preferred embodiment of the present invention.
Fig. 3 is a second block diagram of an optical fiber communication device according to the preferred embodiment of the present invention.
Fig. 4 is a block diagram of a third embodiment of an optical fiber communication device according to the present invention.
Fig. 5 is a schematic diagram of the matching of the automatic shutdown circuit, the photovoltaic conversion circuit, the processor and the modulation circuit according to the preferred embodiment of the present invention.
Icon: 10-an optical fiber communication system; 100-optical fiber communication means; 110-a processor; 111-a first optocoupler; 112-a beam splitter; 113-a photovoltaic conversion circuit; 114-a modulation circuit; 115-a modulation subcircuit; 116-drive subcircuits; 117-a second optocoupler; 120-a communication controller; 130-a boost circuit; 140-voltage stabilizer; 150-automatically turning off the circuit; 160-a photoelectric conversion module; 200-an optical communication base station; 300-downstream device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "middle", "upper", "lower", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the existing optical fiber communication technology field, when an optical fiber communication device (or an optical fiber communication node) performs communication, besides receiving an external optical signal, a pumping self-luminescence light source is needed to form a light source so as to modulate a signal to be transmitted onto an optical signal generated by a self-light source. And the conversion efficiency of light to electricity and electricity to light is low, and the two conversions result in a large amount of energy loss. The optical fiber communication device and the optical fiber communication system can solve the problem.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, an interactive schematic diagram of an optical fiber communication system 10 according to a preferred embodiment of the invention is shown. The present embodiment provides an optical fiber communication apparatus 100, which can be applied to an optical fiber communication system 10. The optical fiber communication system 10 includes an optical communication base station 200 for transmitting optical signals, one optical communication base station 200 being communicatively connectable to at least one optical fiber communication device 100. The optical fiber communication device 100 is configured to receive the optical signal and divide the optical signal into at least one first optical signal and at least one second optical signal. The optical fiber communication device 100 is further configured to convert at least one first optical signal into electrical energy for use by itself, and modulate a signal to be sent onto at least one second optical signal and output the signal.
In this embodiment, the optical communication base station 200 may include an optical pumping device for generating an optical signal and a receiving device for receiving the modulated optical signal. The optical pumping device can be a high-power light emitting device and can be connected to a power supply capable of supplying power continuously so as to emit optical signals continuously. It is understood that the optical signals, the first optical signal and the second optical signal are physical light, and can be used as a carrier for transmitting data or information, and can also be used as optical energy for converting into electric energy.
Referring to fig. 2, a block diagram of an optical fiber communication device 100 according to a preferred embodiment of the invention is shown. The optical fiber communication apparatus 100 provided in this embodiment may include a processor 110, a first optical coupler 111, a second optical coupler 117, an optical splitter 112, a photovoltaic conversion circuit 113, and a modulation circuit 114.
In the present embodiment, the first optical coupler 111 is used to receive an optical signal. The optical splitter 112 is connected to the first optical coupler 111, and is connected to the photovoltaic conversion circuit 113 and the modulation circuit 114, respectively, for splitting the optical signal received by the first optical coupler 111 into at least one first optical signal and at least one second optical signal. The photovoltaic conversion circuit 113 is connected to the processor 110 and the modulation circuit 114, and is configured to convert at least one of the first optical signals into electrical energy, and supply the electrical energy to the processor 110 and the modulation circuit 114. The modulation circuit 114 is connected to the processor 110, and is configured to modulate a signal to be sent received by the processor 110 onto a second optical signal under the control of the processor 110; the second optocoupler 117 is connected to the modulation circuit 114 and outputs a modulated second optical signal.
In this embodiment, the modulation circuit 114 may include a modulation sub-circuit 115 and a driving sub-circuit 116. The driving sub-circuit 116 is connected to the photovoltaic conversion circuit 113, the processor 110, and the modulation sub-circuit 115, and is used for amplifying the signal to be transmitted, and the amplification factor thereof may be set according to the actual situation, which is not particularly limited herein. The modulation sub-circuit 115 is connected to the optical splitter 112, the first optical coupler 111, and the second optical coupler 117, and the modulation sub-circuit 115 is configured to receive the second optical signal from the first optical coupler 111, modulate the amplified signal to be transmitted onto the second optical signal, and then output the modulated second optical signal by the second optical coupler 117.
The photovoltaic conversion circuit 113 comprises, as will be appreciated, a photovoltaic panel for converting light energy into electrical energy. In addition, a photovoltaic panel may be disposed outside the housing of the optical fiber communication apparatus 100 to absorb external light energy and convert the light energy into electric energy.
In this embodiment, the optical fiber communication apparatus 100 may further include a communication controller 120 connected to the processor 110. The communication controller 120 is configured to be communicatively connected to the downlink device 300, so as to receive a signal to be sent by the downlink device 300.
Alternatively, the processor 110 may be, but is not limited to, a central processing unit, an FPGA, an STM 32-series chip, etc., and is not specifically limited herein. The communication controller 120 may be, but is not limited to, at least one of a GPIO interface, UART interface, I2C interface, SPI interface. That is, the optical fiber communication apparatus 100 is communicatively connected to the downstream device 300 through at least one of a GPIO interface, a UART interface, an I2C interface, and an SPI interface.
It is understood that the optical communication base station 200 emits only continuous optical signals to serve as an optical carrier when performing unidirectional communication. The optical fiber communication apparatus 100 receives an optical signal from the optical communication base station 200, and the optical communication apparatus may acquire a signal to be transmitted from the downstream device 300, and then modulate the signal to be transmitted onto a second optical signal and output the second optical signal to other devices (such as the optical communication base station 200 and other optical communication apparatuses) so as to implement data communication. The downlink device 300 may be an acquisition device, and may acquire signal data through a sensor, where the acquired signal data is a signal to be sent.
Referring to fig. 3, a second block diagram of an optical fiber communication device 100 according to a preferred embodiment of the invention is shown. In this embodiment, the optical fiber communication apparatus 100 may further include a photoelectric conversion module 160. The photoelectric conversion module 160 is connected to the processor 110, and is configured to receive signal light with a command and generate an electrical signal. The processor 110 is further configured to obtain a signal to be transmitted corresponding to the electrical signal when the electrical signal is detected to be of a preset type, and then modulate the signal to be transmitted onto a second optical signal received subsequently, and output the signal through the second optical coupler 117, thereby implementing bidirectional communication.
It is understood that the photoelectric conversion module 160 is configured to convert an optical signal into an electrical signal, and different optical signals (such as different frequencies of light, different illumination intensities, etc.) may obtain different electrical signals. That is, a signal light with a command may be transmitted at the end of the optical communication base station 200, so that the photoelectric conversion module 160 obtains an electrical signal corresponding to the signal light according to the signal light. When the processor 110 detects that the electrical signal is of a preset type, the electrical signal may be parsed to obtain a modulation command corresponding to the electrical signal, and then the processor 110 may obtain a signal to be transmitted corresponding to the modulation command and modulate the signal to be transmitted onto the second optical signal.
For example, in performing bidirectional communication, the optical communication base station 200 first emits signal light with a command and then emits a continuous optical signal. The signal light is used for the photoelectric conversion module 160 and the processor 110 to process and analyze, so as to obtain a signal to be sent corresponding to the command. The first of the optical signals is for conversion by the photovoltaic conversion circuit 113 to electrical energy for use by the fiber optic communications device 100. The second optical signal is used as an optical carrier, and the adjusting circuit may modulate the signal to be transmitted onto the second optical signal and output the modulated second optical signal through the second optical coupler 117.
Referring to fig. 4, a third block diagram of an optical fiber communication device 100 according to a preferred embodiment of the invention is shown. The fiber optic communication device 100 may also include a boost circuit 130. One end of the voltage boosting circuit 130 is connected to the photovoltaic conversion circuit 113, and the other end is connected to the processor 110 and the modulation circuit 114, and is used for boosting the output voltage of the photovoltaic conversion circuit 113 to provide voltages corresponding to the processor 110 and the modulation circuit 114. The boost circuit 130 includes a DC-DC boost chip, where the boost ratio may be set according to practical situations, and is not specifically limited herein.
Optionally, the fiber optic communication device 100 further includes a voltage regulator 140. One end of the voltage stabilizer 140 is connected to the photovoltaic conversion circuit 113, and the other end is connected to the processor 110 and the modulation circuit 114, for stabilizing the output voltage of the photovoltaic conversion circuit 113. Specifically, the regulator 140 may be a low dropout linear regulator (low dropout regulator, LDO).
Optionally, the fiber optic communication device 100 further includes an automatic shut down circuit 150. The automatic turn-off circuit 150 is connected to the photovoltaic conversion circuit 113, and is configured to disconnect the power supply from the photovoltaic conversion circuit 113, the processor 110, and the modulation circuit 114 when it is detected that the output voltage of the photovoltaic conversion circuit 113 is lower than a preset value. The preset value thereof may be set according to actual conditions, and is not particularly limited herein.
Referring to fig. 5, a schematic diagram of the matching of the automatic shutdown circuit 150, the photovoltaic conversion circuit 113, the processor 110 and the modulation circuit 114 is provided in the preferred embodiment of the present invention. In this embodiment, the automatic turn-off circuit 150 includes a voltage detection chip U2 and an electric control switch Q2. The voltage detection chip U2 includes a positive electrode pin (VDD), a ground pin (VSS), and a signal output pin (Vout). The positive electrode pin is connected with the voltage output end of the photovoltaic conversion circuit 113, the grounding pin is grounded, and the signal output pin is connected with the electric control switch. The electric control switch Q2 is disposed on the power supply lines of the photovoltaic conversion circuit 113, the processor 110 and the modulation circuit 114, and the voltage detection chip is configured to control the electric control switch to be turned off when detecting that the output voltage of the photovoltaic conversion circuit 113 is lower than a preset value.
Optionally, the optical fiber communication device 100 further includes a housing for enclosing the processor 110, the first optical coupler 111, the second optical coupler 117, the optical splitter 112, the photovoltaic conversion circuit 113, the modulation circuit 114, and the like. The shell can be used for waterproof and explosion-proof, so that the anti-interference capability of the optical fiber communication device 100 is improved, and the application scene of the optical fiber communication device 100 is wider.
Based on the above design, the optical fiber communication device 100 does not need to form a light source, and directly uses the received optical signal as an optical carrier, so as to reduce energy conversion links, help to reduce power consumption of the optical fiber communication device 100 and lost energy in the transmission process, and improve transmission distance and energy utilization rate. In addition, the fiber optic communication device 100 may be a passive device that helps reduce the volume of the device by converting the received optical signal into electrical energy for use by itself.
It should be noted that, the optical fiber communication device 100 may also be provided with a power module, which is used to provide power for the optical fiber communication device 100. Specifically, the power module may be a lithium ion battery, a lead storage battery, or the like, and is not particularly limited herein.
Referring again to fig. 1, the present invention also provides an optical fiber communication system 10, which includes an optical communication base station 200 and at least one optical fiber communication device 100 according to the above embodiment. It is understood that the optical communication base station 200 may be in optical communication with at least one optical fiber communication device 100. The working principle and the technical effects of the optical communication base station 200 are substantially the same as those of the optical communication base station 200 in the above embodiment, and are not described herein. Each optical fiber communication device 100 is configured to split an optical signal into a first optical signal and a second optical signal. The optical fiber communication device 100 is further configured to convert the first optical signal into electrical energy for use by itself, and modulate a signal to be transmitted to a second optical signal output.
In summary, the present invention provides an optical fiber communication device and system. The optical fiber communication device comprises a processor, a first optical coupler, a second optical coupler, an optical splitter, a photovoltaic conversion circuit and a modulation circuit. Wherein the first optical coupler is used for receiving an optical signal; the optical splitter is connected with the first optical coupler and is respectively connected with the photovoltaic conversion circuit and the modulation circuit and is used for dividing the received optical signal into at least one path of first optical signal and at least one path of second optical signal; the photovoltaic conversion circuit is connected with the processor and the modulation circuit and is used for converting at least one path of first optical signals into electric energy and supplying the electric energy to the processor and the modulation circuit; the modulation circuit is connected with the processor and used for modulating the signal to be transmitted received by the processor onto a second optical signal under the control of the processor; the second optical coupler is connected with the modulation circuit and is used for outputting a modulated second optical signal. According to the scheme, the first optical signal is converted into electric energy for the optical fiber communication device to use, the signal to be sent is modulated to the second optical signal to be output, the optical fiber communication device does not need to generate a light source, the received optical signal is directly modulated, and the energy conversion efficiency in optical fiber communication is improved and the energy consumption of the optical fiber communication is reduced.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an optical fiber communication device, is applied to optical fiber communication system, its characterized in that, optical fiber communication device includes treater, communication controller, first optocoupler, second optocoupler, beam splitter, photovoltaic conversion circuit, photoelectric conversion module, automatic shutdown circuit and modulation circuit, wherein:
the first optical coupler is used for receiving an optical signal;
The optical splitter is connected with the first optical coupler and is respectively connected with the photovoltaic conversion circuit and the modulation circuit, and is used for splitting the optical signal received by the first optical coupler into at least one path of first optical signal and at least one path of second optical signal;
The communication controller is connected with the processor and is used for being in communication connection with downlink equipment so as to receive a signal to be transmitted, which is transmitted by the downlink equipment;
the photoelectric conversion module is connected with the processor and is used for receiving signal light rays with commands sent by the optical communication base station and generating electric signals; the processor is further used for obtaining a signal to be sent corresponding to the electric signal when the electric signal is detected to be of a preset type;
The photovoltaic conversion circuit is connected with the processor and the modulation circuit and is used for converting at least one path of first optical signals into electric energy and supplying the electric energy to the processor and the modulation circuit;
The automatic turn-off circuit is connected with the photovoltaic conversion circuit and is used for cutting off the power supply of the photovoltaic conversion circuit, the processor and the modulation circuit when the output voltage of the photovoltaic conversion circuit is detected to be lower than a preset value;
The modulation circuit is connected with the processor and used for modulating the signal to be transmitted received by the processor onto the second optical signal under the control of the processor; the second optical coupler is connected with the modulation circuit and is used for outputting a modulated second optical signal.
2. The optical fiber communication apparatus according to claim 1, wherein the modulation circuit comprises a modulation sub-circuit and a driving sub-circuit, the driving sub-circuit being connected to the photovoltaic conversion circuit, the processor and the modulation sub-circuit for amplifying the signal to be transmitted;
the modulation subcircuit is connected with the optical splitter, the first optical coupler and the second optical coupler and used for modulating the amplified signal to be transmitted to the second optical signal.
3. The fiber optic communication apparatus of claim 1, wherein the fiber optic communication apparatus is communicatively coupled to the downstream device via at least one of a GPIO interface, a UART interface, an I2C interface, and an SPI interface.
4. The fiber optic communication device of claim 1, further comprising a boost circuit having one end connected to the photovoltaic conversion circuit and another end connected to the processor and modulation circuit for boosting an output voltage of the photovoltaic conversion circuit to provide a voltage corresponding to the processor and modulation circuit.
5. The fiber optic communication device of claim 1, further comprising a voltage regulator having one end connected to the photovoltaic conversion circuit and another end connected to the processor and the modulation circuit for regulating an output voltage of the photovoltaic conversion circuit.
6. The fiber optic communication device of claim 5, wherein the automatic shutdown circuit comprises a voltage detection chip and an electrical control switch, the voltage detection chip comprises a positive pin, a ground pin and a signal output pin, the positive pin is connected with the voltage output end of the photovoltaic conversion circuit, the ground pin is grounded, and the signal output pin is connected with the electrical control switch, wherein:
The electric control switch is arranged on the power supply lines of the photovoltaic conversion circuit, the processor and the modulation circuit, and the voltage detection chip is used for controlling the electric control switch to be disconnected when the output voltage of the photovoltaic conversion circuit is detected to be lower than a preset value.
7. An optical fiber communication system comprising an optical communication base station for emitting an optical signal and an optical fiber communication apparatus according to any one of claims 1 to 6, at least one of said optical fiber communication apparatuses being in optical communication with said optical communication base station, each of said optical fiber communication apparatuses being adapted to convert a portion of the optical signal into electrical energy and to modulate a signal to be transmitted onto said optical signal.
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| CN201810005835.4A CN108023642B (en) | 2018-01-03 | 2018-01-03 | Optical fiber communication device and system |
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| CN201810005835.4A CN108023642B (en) | 2018-01-03 | 2018-01-03 | Optical fiber communication device and system |
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